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68 Cygni is the Flamsteed designation for a star in the constellation Cygnus. Located approximately 1,400 parsecs (4,600 ly) distant, the star is a hot blue giant of spectral type O7.5IIIn((f)), a massive star that is likely currently expanding to become a supergiant. The star is surrounded by a ring-shaped nebula (likely a Strömgren sphere) named .

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  • 68 Cygni (en)
  • 68 Cygni (pt)
  • 68 Cygni (sv)
  • 天鵝座68 (zh)
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  • 68 Cygni (A Cygni) é uma estrela na direção da Cygnus. Possui uma ascensão reta de 21h 18m 27.18s e uma declinação de +43° 56′ 45.5″. Sua magnitude aparente é igual a 5.04. Considerando sua distância de 60257 anos-luz em relação à Terra, sua magnitude absoluta é igual a −11.29. Pertence à classe espectral O8e. É uma estrela variável elipsoidal em rotação. (pt)
  • 68 Cygni, som är stjärnans Flamsteed-beteckning, är en ensam stjärna belägen i den mellersta delen av stjärnbilden Svanen, som också har variabelbeteckningen V1809 Cygni. Den har en genomsnittlig skenbar magnitud på ca 5,00 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 0,7 mas, beräknas den befinna sig på ett avstånd på ca 5 000 ljusår (ca 1 400 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet av ca -30 km/s. (sv)
  • 天鵝座68,又名BD+43 3877,HD 203064、SAO 50690、HR 8154,是天鵝座的一颗恒星,视星等为5,位于銀經87.61,銀緯-3.84,其B1900.0坐标为赤經21h 14m 43.4s,赤緯+43° -3.84′ 30″。 (zh)
  • 68 Cygni is the Flamsteed designation for a star in the constellation Cygnus. Located approximately 1,400 parsecs (4,600 ly) distant, the star is a hot blue giant of spectral type O7.5IIIn((f)), a massive star that is likely currently expanding to become a supergiant. The star is surrounded by a ring-shaped nebula (likely a Strömgren sphere) named . (en)
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  • 68 Cygni (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Red_circle.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Cygnus_constellation_map.svg
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